Here is the one thing that makes December 2026 different from any other December in Korea: Christmas Day falls on a Friday, and so does New Year's Day. Both are public holidays here. That gives Korea two back-to-back three-day weekends, ten days apart, and it changes what you can book and what you will pay.
I went looking at December dates expecting the usual answer — cold, quiet, cheap, go for the lights. Half of that is still true. The other half stops being true after December 18.
The short version
| If you are here... | What to expect |
|---|---|
| Dec 1–10 | The quietest, cheapest stretch of the whole winter. Cold but dry. Palaces empty. |
| Dec 11 (Fri) | University exam results day. The cities get noticeably younger from here. |
| Dec 22 (Tue) | Winter solstice. Red bean porridge appears everywhere for one day. |
| Dec 25–27 (Fri–Sun) | Three-day holiday weekend. Book restaurants and trains early. |
| Dec 28–30 | Breathing room between the two weekends. Good value. |
| Dec 31 – Jan 2 | Second three-day weekend. Bell-ringing, sunrise trips, everything full. |
Why the Friday thing matters so much
In a lot of countries a holiday landing on a Friday is a mild convenience. In Korea it is the difference between a normal week and a sold-out one, because domestic travel here is compressed into whatever consecutive days off the calendar happens to give.
December 2026 gives two sets. Friday 25 December (Christmas Day, a public holiday) runs into the weekend. Then Friday 1 January 2027 (New Year's Day, also a public holiday) runs into the next one. Nothing in between is a holiday, so the pressure lands hard on those two blocks and almost nowhere else.
What that looks like in practice:
- KTX seats on the Friday morning and the Sunday evening of both weekends go first. Tickets open roughly a month in advance for most services, and those two Fridays are the ones people set reminders for.
- Hotels in Seoul price Christmas weekend like a peak date, not a shoulder date. Gangwon-do — the ski and east-coast side — prices the New Year weekend the same way.
- Restaurants in Seoul take Christmas Eve and Christmas Day reservations weeks out. This is not a formality. Walking in somewhere decent on 25 December without a booking is genuinely hard.
And the flip side, which is the useful part: 1 to 18 December is as quiet as Korea gets. Same lights, same markets, same cold, a fraction of the people and a noticeably lower hotel rate. If your dates are flexible at all, that is the window.
What the cold actually does
Seoul's December, using the Korea Meteorological Administration's 1991–2020 normals, has a daily mean of 0.2°C and an average overnight low of −3.4°C. Daytime tops out a few degrees above freezing. Average precipitation is about 23 mm for the whole month, with roughly six days that see some snow.
Those numbers undersell it and oversell it at the same time, and here is why.
They undersell it because of wind. The cold that arrives in Korean winters comes off the Siberian high, and it arrives dry and moving. A still −2°C afternoon is pleasant walking weather. A −2°C afternoon on an open riverside path with wind behind it is not, and your weather app will show the same number for both.
They oversell it because of indoor heating. Korean buildings are heated hard — underfloor heating is standard in homes, and shops, subways and cafés run warm. You will be peeling layers off indoors more often than you expect. One enormous coat is the wrong strategy; three thin things you can take off is the right one.
There is also a pattern worth knowing. Korean has an old phrase for winter weather — samhan-saon, "three cold days, four mild days" — describing the way Arctic air masses here arrive in pulses rather than settling in. It is a generalisation and no forecaster treats it as a rule, but the underlying behaviour is real: December cold in Korea tends to come in snaps of a few days with milder gaps between them. Practically, it means a brutal forecast for your arrival day is not a verdict on your whole trip, and it is worth checking the forecast again the night before any outdoor day rather than committing a week out.
What happens on December 11
On Friday 11 December 2026, Suneung results are released. That is the national university entrance exam, sat on 19 November, and the Ministry of Education's schedule puts the score reports on 11 December.
This is not a public holiday and nothing closes. But it is a real shift in the texture of the cities, and no travel guide mentions it. Roughly half a million eighteen- and nineteen-year-olds have been studying for years, finished the exam in November, and from results day onward are visibly, collectively free.
From mid-December, cafés in Hongdae and Sinchon, cinemas, arcades, karaoke rooms and the photo-booth places are busier and younger than at any other point in the year. Hair salons run student promotions. So do driving schools. If you are travelling with teenagers it is a good time to be here. If you wanted a quiet café in a university district on a December afternoon, go before the 11th.
I wrote up the exam day itself and what it does to the country in the November guide.
December 22: the solstice, and one bowl of porridge
The December solstice in 2026 falls at 20:50 UTC on 21 December, which is 05:50 on Tuesday 22 December in Korean time. So the Korean calendar marks dongji — the winter solstice — on the 22nd.
It is not a holiday and nothing shuts. What happens is food. Patjuk, red bean porridge, traditionally with small glutinous rice balls in it, is the solstice dish, and on that one day it turns up in porridge chains, temple kitchens, traditional markets and a lot of ordinary restaurants that do not otherwise sell it.
The old reasoning was that red warded off bad luck on the longest night, and some temples still hold solstice rites. For a visitor it is a very low-effort way to eat something genuinely seasonal rather than year-round — it is mildly sweet, thick, and it is the right thing to be holding at that temperature. Traditional markets are where to look; Gwangjang Market in Seoul is the obvious one.
Where the snow actually is
Visitors arrive in December expecting Seoul under snow. Seoul gets snow — about six days of it in an average December — but it rarely lies for long in the city centre, and most of those days are a dusting rather than a scene.
The snow is on the eastern side of the country. Gangwon-do — the mountainous province along the east — catches a lot more of it, and the valleys inland from Gangneung are where December looks like the photographs. The east coast itself is a separate thing: Gangneung and Sokcho are reachable by KTX in under two and a half hours from Seoul, and the combination of sea, snow on the hills behind, and winter light is the reason Koreans go there in December rather than in August.
If you want snow as the point of the trip rather than a bonus, plan around Gangwon-do and accept that Seoul is where you sleep at the start and end.
Skiing: what is knowable now
Korean ski resorts typically open between late November and mid-December, depending on temperatures, and most run into late February or March. The big ones are Yongpyong and Alpensia in Pyeongchang, High1 in Jeongseon, Vivaldi Park in Hongcheon, and Konjiam just outside Seoul.
I am not going to give you 2026–27 opening dates, because as of early October the resorts have not published them. They are announced in November once snowmaking conditions are known, and they move. What you can do now is note that the New Year weekend (31 December – 2 January) is the single busiest block of the Korean ski season, and that if you want a resort hotel on those nights you are already late rather than early.
Konjiam is worth knowing about if you have one spare day rather than a trip: it is close enough to Seoul for a day return and it caps the number of people on the mountain, which makes it unusually civilised for a Korean slope on a winter weekend.
Christmas in Korea is not the Christmas you know
This one surprises people every year, so it is worth being direct about it.
Christmas Day is an official public holiday in Korea. Government offices, banks and schools close. Almost nothing else does. Department stores open. Shopping streets open. Cafés, cinemas and restaurants open and are busy. Public transport runs a holiday timetable, not a shutdown. The quiet-empty-city Christmas that happens across much of Europe does not happen here.
The other difference is who it is for. Korea's Christmas is primarily a couples' and friends' occasion, not a family one — closer to Valentine's Day in feel than to a family dinner. Families gather at Lunar New Year and Chuseok instead. So the pressure on 24 and 25 December falls on restaurants, hotels and anywhere with a view, not on home kitchens.
Churches do hold services, and the Myeongdong Cathedral area is the obvious place to see that side of it, but the dominant mode of the day is lights, dates and crowds.
Where the lights are: Cheonggyecheon, the stream running through central Seoul, carries winter illuminations most years; the Seoul Winter Festa programme bundles the city's December-to-January winter events and markets together; Myeongdong, Gangnam and the Lotte and Shinsegae department store facades do large displays. Dates and locations shift year to year and the 2026 programme is not out yet, so check the Seoul city tourism site in late November rather than trusting last year's blog post.
New Year: bells and sunrise
New Year's Eve in Korea splits into two traditions that happen about seven hours apart.
At midnight, the Bosingak bell-ringing in Jongno, central Seoul, rings in the year with thirty-three strikes. It draws a very large crowd, the surrounding streets close, and Jonggak station gets controlled. It is free, it is the central public event of the night, and if you go, go early and expect to be standing.
Then at dawn on 1 January, a substantial part of the country goes to watch the first sunrise of the year. Jeongdongjin on the Gangwon coast is the famous one — there are trains timed to arrive before dawn — and Homigot near Pohang is the other. In Seoul, people climb Namsan, Inwangsan or Achasan for the same reason. Both coastal options require booking well ahead and a tolerance for cold and crowds; the Seoul hills require neither and still work.
Note that 1 January 2027 is a Friday, so the sunrise crowd rolls straight into a three-day weekend. Coastal accommodation for 31 December is one of the hardest bookings in the Korean calendar.
What to pack
| Item | Why |
|---|---|
| Thin layers, not one thick coat | Indoor heating is strong. You will be removing things constantly. |
| Windproof outer shell | The wind is what makes Korean cold bite, not the temperature. |
| Gloves, hat, something for your neck | Non-negotiable from mid-December. |
| Shoes with grip | Melted-and-refrozen snow on paving is the actual hazard, not deep snow. |
| Lip balm and hand cream | Korean winter air is very dry. This is the complaint visitors make most. |
| A power bank | Cold drains phone batteries fast, and your phone is your map and payment. |
What you do not need: snow boots for a Seoul-only trip, or thermal underwear for daytime if you are mostly indoors and on the subway. Buy the cheap disposable heat packs — hotteok is the pancake, haekkaek or just "hot pack" is the hand warmer — in any convenience store for about a thousand won. They are the single best value item of a Korean winter.
The full version of this — how cold it actually gets by region, what works on icy pavement, and what is worth buying after you land instead of carrying — is here: What Should You Wear in Korea in Winter? Dress for the Wind, Not the Number.
Booking windows, in order
- Now, if your dates include either long weekend. Accommodation in Seoul for 25–27 December and anywhere coastal or mountainous for 31 December – 2 January.
- About a month out for KTX. Korail opens most reservations roughly a month ahead; the two holiday Fridays sell down quickly.
- Two to three weeks out for Christmas Eve and Christmas Day restaurant bookings in Seoul.
- Late November for ski resort opening dates and the Seoul winter events programme, both of which are announced then.
- Any time for everything in the 1–18 December window, which is the whole argument for travelling then.
Common questions
Is December too cold to enjoy Korea?
No, if you pack for wind rather than for the number on the forecast. The month is dry and often bright, which makes it much more walkable than a damp 5°C elsewhere.
Is Christmas Day a public holiday in Korea?
Yes. Offices, banks and schools close. Shops, restaurants, cinemas and public transport operate normally.
Will it snow in Seoul?
Probably on a few days — the average is about six snow days in December — but it usually does not settle in the city. For reliable snow, go east to Gangwon-do.
Is December cheaper than autumn?
The first eighteen days, yes, noticeably. The two holiday weekends, no — they price like peak season.
Are the palaces open in winter?
Yes, year-round apart from their weekly closing day, and they are at their emptiest in early December. Hanbok rental still gets you free entry, and the grounds take winter light well.
What about the Lunar New Year?
Not a December problem — it falls in February 2027. December's only public holidays are Christmas Day and, just over the line, New Year's Day.
Two things to sort before you fly
First, entry permission. Whether you need a K-ETA before boarding depends on your nationality and on an exemption that is currently running — worth checking rather than assuming, and worth re-checking in December if you are travelling in 2027. I set out who needs one and who does not here.
Second, scam texts. Booking season brings a predictable wave of fake delivery and reservation messages, and they get worse around the holidays. What they look like and what to do if you tapped one is here.
If your trip starts in November rather than December, the November guide covers the handover month, and the 2026 holiday calendar has the full year of closures and long weekends.
The one-line answer
Come in the first half of December for a cheap, quiet, bright-cold Korea with all the lights and none of the queues. Come in the last ten days only if you have booked, because for those ten days the whole country is travelling with you.
Temperature and snow-day figures are Korea Meteorological Administration 1991–2020 normals for Seoul. The solstice time is 20:50 UTC on 21 December 2026 (05:50 KST, 22 December). The Suneung results date of 11 December 2026 is the Ministry of Education's announced schedule for the 2027 academic year. Public holiday dates are the Korean government calendar. Ski resort opening dates for the 2026–27 season had not been published when this was written. Checked on 3 October 2026.
